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Contains:  Horsehead nebula, IC 431, IC 432, IC 434, IC 435, NGC 2023, NGC 2024, The star Alnitak (ζOri), The star σOri
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Flame and Horsehead at 135mm, 


Flame and Horsehead at 135mm
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Flame and Horsehead at 135mm

Technical card

Dates:Dec. 31, 2019

Baader B 1.25'' Filter: 18x180" (gain: 115.00) -15C
Baader f/2 Highspeed 1.25" H-Alpha Filter: 7x180" (gain: 115.00) -15C
Baader G 1.25'' Filter: 21x180" (gain: 115.00) -15C
Baader R 1.25'' Filter: 19x180" (gain: 115.00) -15C

Integration: 3.2 hours

Darks: ~40

Flats: ~40

Flat darks: ~40

Avg. Moon age: 4.99 days

Avg. Moon phase: 25.62%

Bortle Dark-Sky Scale: 6.00

Basic astrometry details job: 3250133

RA center: 5h 40' 54"

DEC center: -2° 10' 51"

Pixel scale: 3.809 arcsec/pixel

Orientation: 65.264 degrees

Field radius: 1.313 degrees

Resolution: 2010x1455

Locations: Backyard, Saint-Orens de Gameville, France

Data source: Backyard


First pic with my new ZWO Electronic Filter Wheel Mini. Changing filters will be much easier now. Now I can change filters and refocus with the electronic focuser without going outside in the backyard !

The image is noisy ; I will try to add subs later, especially Ha.

Lens opened at f/2.8. I have to rebuild an aperture mask to deal with the diffraction spikes.



License: None (All rights reserved)

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Flame and Horsehead at 135mm,